应用LSI实现WEB图片的索引和查询

应用奇异值分解方法，分析相关文本词条和图片语义的关系，构造了一个图片“潜在语义索引”模型，用于缓解传统的许多WEB图片检索系统在索引和查询中遇到的同义词和多义词问题，实现语义索引和查询实验表明，该模型能有效地改善图片的索引和查询性能。     

单行安置的算法

对一j= LSI/VLSI具有积木块的单元，rt卞L给出单f7安置的算法一般来说，给出矩形单元的相对位置后，须从Zw个状态中选出最优解.我们证明在单行安置时可归结为N个状态的问题，得到一种很有效的算法.此算i?;曾用Fortran语言编程并在IBM-PC机上通行，结果令人满意.     

LSI用环氧塑封料研制与中试

本文叙述了ＬＳＩ用环氧塑封料研究与中试的主要成果、技术要点及成果应用。     

基于一位全加器三变量逻辑函数的查表综合

通过对1个一位全加器3个输入端不同的组合，可以实现与门、或门、非门、同或门及异或门，因此全加器在数字逻辑电路中有着重要的作用．本文在介绍全加器的基础上提出了用查表法设计基于一位全加器实现任意三变量函数的组合电路和时序电路．在与传统的与非门／或非门的比较中，它显示了优势．     

求最大团的图分解算法

本文先建立关于图的边分解和顶点分解的一些定理，然后论述求图的最大团的几种算法:顶点分解、边分解的混合分解.最后举例说明边分解的算法.用FORTRAN语言编写的该算法的程序已在IBM-PC机上实现     

Directly light scattering imaging of the aggregations of biopolymer bound chromium(III) hydrolytic oligomers in aqueous phase and liquid/liquid interface

Investigations of inorganic oligomers are important in both chemistry and physiology. In this contribution, we propose a laser induced light scattering imaging (LSI) and a total internal reflected light scattering imaging (TIR-LSI) technique, and apply them to characterize the interactions of inorganic oligomers with biopolymer in aqueous phase and at liquid/liquid interface, respectively. In aqueous medium, synthetic chromium(III) hydrolytic oligomers (CrHO) react with DNA, and the resultant binary could be extracted into the H₂O/CCl₄ interface in the presence of triocyctyl phosphine oxide (TOPO), forming a DNA-CrHO-TOPO ternary amphipathic complex at the interface with the associate constant of 1.32 × 10³ mol⁻¹ dm⁴ for a given 1.0 × 10⁻⁴ mol l⁻¹ TOPO. Under the excitation of a 441-nm He-Cd laser light beam, the resultant light scattering and total internal reflected light scattering (TIR-LS) signals of the formed binary in aqueous phase and ternary at liquid/liquid interface could be easily captured using a common microscope coupled with a CCD camera. By digitally analyzing the CCD captures, we demonstrate that aggregations of the CrHO-DNA binary in aqueous phase and DNA-CrHO-TOPO ternary at liquid/liquid interface have occurred, respectively.     

L形通道布线的展开法

本文提出将L形通道展成直通道的布线方法，对展开后的直通道定义了水平约束、垂直约束、拐角约束、走线约束，利用赋权的混合图反映这四种约束、并逐步将图中的无向边转变成有向边，按照有向图的线网上下关系，完成直通道布线，再收缩冗余布线区变成L形通道布线.     

Dissolution Kinetics in Langmuir-Blodgett Films of Solid State Polymerized ω-Tricosenoic Acid

ω-tricosenoic acid in L.B. films undergoes a solid state, lattice controlled polymerization. This molecule exhibits high contrast under short time development when used as an electron-resist in microlithography. This high contrast seems to be due to two factors : the monodispersity of the polymer and the compactness of the film. To check for a relationship between these factors and contrast, a model for the dissolution rate of partially polymerized L.B. films is presented, which includes monodispersity and compactness as basic hypotheses.

Since this model is able to fit all the set of experimental results in spite of its crude simplicity and the small number of adjustable parameters, it is believed to actually represent the real dissolution mechanism. The necessity of introducing a long penetration period is an expected consequence of the compact, trans-zigzag structure of the fatty acids. Polymer monodispersity is a second consequence of the model. A possible mechanism for it (stress limited propagation) is presented.     

BBL布局的V一H树

本文首先定义一种有序有色的出树,称为V-H树。用该树描述BBL布局中的slicing结群。然后提出两种产生V-H树的递归构造法:一种是利用整数划分和迭代的方法,另一种是先分类再根据若干定理递归。最后讨论几种特殊树和BBL布局的关系。     

A stochastic model to evaluate performance of testing and taping processes on an LSI production system

An automated testing and taping process on a LSI production system is modelled as a variant of M/G/1 finite capacity queue with multiple transactions, where each package receives either a normal service or normal service plus postservice. The system has N spaces for waiting. We successfully define states of system to regard as those of a Markov renewal process even though some time points are not regeneration points. Using the model, we derive properties of stochastic behaviour of the system, in particular, throughput, process of overflows, busy period, and idle period as cost-effective tools for system evaluation.